A place was rocky and barren but now, there is a green forest, the sequence of origin is:

The sequence of origin of life may be

The sequence of origin of life may be

The sequence of origin of life may be

The sequence of origin of life may be

The sequence of origin of life may be

A place , which used to be rocky and barren, has now turned into a lush green forest . The plant succession of the area is

A place , which used to be rocky and barren, has now turned into a lush green forest . The plant succession of the area is

The sequence of origin of life may be.

What is the correct sequence of origin of mammals?